Introduction

Foreword

Comfort, energy efficiency and low operating costs as well as quick return of investment, are demands of today’s building automation systems. These requirements can be reached by using integrated control system that can combine all functions of building in to one interoperable platform.

TwinCAT PLC HVAC library includes all needed functionalities for heating, cooling and ventilation systems and also for room automation controls. These functionalities are available as TwinCAT PLC function blocks that can be programmed and combined together to reach energy efficient controlling of building. By using these well tested function blocks, it is easy to realize complex building controls and hence reduce engineering time. Freely programmable controllers and modular I/O-system from Beckhoff, makes it possible to reduce life time costs of the control system when demands of the building are changing.

Room automation function blocks for air-conditioning, lighting and shading can be combined in order to reach energy efficient class A according to EN15232 standard.

This results in the following advantages for the system programmer in creating the system and for the system operator in running operation:

• Fast creation of system programs.
• Fast parameterization and commissioning of the systems.
• Guarantee of a very large range of system functions at all times.
• Transparency of programs (prerequisite for long-term maintainability and expandability of the systems)
• Once created, good reusability of templates for systems or system subassemblies.
• Easy training of staff.
• Easy expansion and modification of existing systems.
• Specifications for a clear, object-oriented structure for the creation of visualization objects in MMI and SCADA systems.
• Programs are easier to document.